Evidence of two-stage melting of Wigner solids

Talbot Knighton, Zhe Wu, Jian Huang, Alessandro Serafin, J. S. Xia, L. N. Pfeiffer, K. W. West

Research output: Contribution to journalArticlepeer-review

26 Scopus citations

Abstract

Ultralow carrier concentrations of two-dimensional holes down to p=1×109cm-2 are realized. Remarkable insulating states are found below a critical density of pc=4×109cm-2 or rs≈40. Sensitive dc V-I measurement as a function of temperature and electric field reveals a two-stage phase transition supporting the melting of a Wigner solid as a two-stage first-order transition.

Original languageEnglish (US)
Article number085135
JournalPhysical Review B
Volume97
Issue number8
DOIs
StatePublished - Feb 20 2018
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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